The phrase "giddy heights" refers to a feeling of excitement or exhilaration when reaching a high level or achieving success in something. Full definition
Dash has had a neat run in 2017 and has now reached giddying heights. (profitconfidential.com)
The Florence Foster Jenkins industry reaches newly giddy heights with Stephen Frears's film of the same name, which cleverly casts a great talent - who else but Meryl Streep? (theartsdesk.com)
At such giddying heights, I like to take a step back from any investment. (profitconfidential.com)